// This source file is part of the Swift.org open source project
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors

// RUN: not %target-swift-frontend %s -emit-ir
.f{(t: _?==nil-{
a?==0
__?=nil?(
{ :_{_
&_?
[]
_
{f{}{
.{_{nil)
{
._?=(
&()
.f\n
